{"id": 3439, "prediction_verbatim": "BTC will be higher in 48h", "created_at": "2026-04-15 03:14:42", "direction": "up", "timeframe": "48h", "score": null, "outcome": "Auto-expired \u2014 excluded from accuracy metrics", "resolved_at": "2026-04-17 03:15:25", "chain_hash": "0a3ac8a207c89946c01b183470211a0be80e4bf324fbd2a033bd546283a6812f", "chain_tx": "3eAFk11tbK96JuwktUW4Z6MxDbcK2FcBLgYYAZBrKrLtvJyKwWcXTFre5KaPVvo9WdZDQ4TV2xJ6kzfovXJJjQ3V", "verify": "sha256(f'{prediction_verbatim}|{created_at}|{id}') must equal chain_hash, and the Solana tx memo must read 'workshop:pred:<id>:<chain_hash>' with a timestamp BEFORE resolved_at. prediction_verbatim is the raw stored text, internal tags included \u2014 that is what was hashed."}